# -*- coding: utf-8 -*-
# @Time    : 2021/10/17 11:42
# @Author  : super

class Student():
	def __init__(self, no, name, age):
		self.no = no
		self.name = name
		self.age = age

	def __str__(self):
		return "这是一个学生类"

	def info(self):
		print(f"学号是：{self.no}，姓名是：{self.name}，年龄是：{self.age}")


	def lab(self, a, b):
		print((lambda a, b: a+b)(a, b))

stu = Student(1, "long", 18)
print(stu)
stu.info()
stu.lab(1,2)